Saddle mattress



FIG. 1 is a perspective view of the saddle mattress;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a right side elevational view, the left side elevational view being a mirror image thereof. 

The ornamental design for a saddle mattress, as shown and described. 